Thresh ing-cylinder



No. 6l2,932. Patented Oct. 25, I898. A. K. a a. s. PORTER.

THRESHI NG CYLINDER.

(Application flled sepb. 30, 1897.)

(No Model.)

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UNITED STATES I PATENT OFFICE.

ABEL K. PORTER AND IIARRY S. PORTER, OF QUINCY, ILLINOIS.

' THRESHlNG-CYLINDER.

SPECIFICATION forming part of Letters Patent No. 612,932, dated October25, 1898. Application filed September 30, 1897. Serial No. 653,629. (Nomodel.)

V shape, with the apex fronting in the direc tion of rotation of thecylinder, carrying the blades or knives a, said bars being also bent toconform to the surface contour of the cylinder. The bars are held inplace by the end bands A A and central band A With this construction thebundles of grain fed to the cylinder Will be spread out and distributedto the ends of the cylinder.

Thus the grain Will be more thoroughly acted on by the knives and therewill be less liability of the grain passing through unthreshed, as isthe case with the cylinder having the blade-bars extending straightacross. 7

Having thus described our invention, What We claim as new is- An open orskeleton cylinder for threshingmachines having the end bands or headsand central band, the blade-bars extending from end to end of thecylinder, bent to substantially V shape With the apex fronting in thedirection of the rotation of the cylinder, and curved to conform to thesurface contour of the cylinder,and having the threshing-blades;substantially as described.

ABEL K. PORTER. HARRY S. PORTER.

Witnesses:

G. W. FREEMAN, L. E. EMMONS, Jr.

